Upper dental impression tray



FIG. 1 is a top perspective view of an upper dental impression trayincorporating my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof; the right sideelevational view being a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for an upper dental impression tray, as shown anddescribed.